Which type of molecule that can be found in living things lack carbon atom

water molecule is one of few molecule that lack carbon atom

h2o

as resources become scarce because of population growth, the growth decreases after few years due to lack of resources and food.

it would affect precipitation by causing flooding in some areas of the world due to climate increasing, causing the glaciers in the northern and southern pole of our planet to melt.

i wish you would have provided choices to simplify it and allow me to give an exact answer.